Numberblock Six is preparing for her board game club when Fifty-six passes by outside. Six is a little mixed up, thinking it’s her guest of honour, and pulls Fifty-six into the room. But what Six doesn’t realise is that Fifty-six is not the guest she was waiting for. Fifty-six is a superhero, who just happened to be passing by. Suddenly, Fifty-four arrives, a little late. He is the guest of honour Six has been waiting for, and he is so excited to start playing loads of lovely board games.